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HAPI Talks with HAPI Cast Member Dr. Leonard Jeffries about Economics, Politics and Culture.
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In ‘Unreported World’ we’re in the Congo with a tribe under threat, as the forest they hunt for food in is put off limits to protect the wildlife. The Baka tribe tell us of threats and intimidation by the proposed park’s guards who are part-funded by the World Wildlife Fund.
Ade Adepitan travels deep into the rainforests to see how the Baka are fighting for food. Is the survival of endangered species being put above their own?
WARNING: You may find scenes of
butchered animals upsetting.
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PERSPECTIVES | The Igbo are one of Nigeria's largest ethnic groups and among them is a minority of practicing Jews that claim to be the descendants of a lost tribe of Israel, but the Jewish state doesn't recognize them. Our Elinor Lalo has the story.
HAPI Talks with esteemed scholars and historians Anthony Browder, Dr. Runoko Rashidi and Prof. Hunter Adams about the Blueprint for Black Power!
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Robbert Dijkgraaf, Perimeter Institute for Theoretical Physics
March 5th, 2014
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Mathematics has proven to be "unreasonably effective" in understanding nature. The fundamental laws of physics can be captured in beautiful formulae. In this lecture I want to argue for the reverse effect: Nature is an important source of inspiration for mathematics, even of the purest kind. In recent years ideas from quantum field theory, elementary particles physics and string theory have completely transformed mathematics, leading to solutions of deep problems, suggesting new invariants in geometry and topology, and, perhaps most importantly, putting modern mathematical ideas in a `natural’ context.
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visit Perimeter Institute's website to find this and other speakers
http://www.perimeterinstitute.ca/video-library
http://pirsa.org/
Where do we get our mathematical symbols from? Why is the set of integers called ℤ ? When was the equals sign first used? How about zero? Good notation tends to catch on quickly, whereas bad notation can obscure beautiful theory.
The lecture explores how the introduction of new notation has paved the way for new leaps in understanding, and considers some mathematical quirks of language, such as what the number 4 in English has in common with the number 11 in Russian.
A lecture by Sarah Hart
The transcript and downloadable versions of the lecture are available from the Gresham College website:
http://www.gresham.ac.uk/lectu....res-and-events/maths
Gresham College has been giving free public lectures since 1597. This tradition continues today with all of our five or so public lectures a week being made available for free download from our website. There are currently over 2,000 lectures free to access or download from the website.
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Presented by Ron Eglash; co-hosted by the University of Michigan School of Information and the Library of Michigan; project made possible in part by the University of Michigan School of Information. For an audio transcript of this video, please visit https://drive.google.com/open?....id=13y47iQrviZN-oFX7 .